CCDrawNode Antialiasing problem

Attached file shows that just draw circle using following code.

CCDrawNode* dNode = CCDrawNode::create();
addChild(dNode);
dNode->drawDot(ccp(1024/2, 768/2), 100, ccc4f(1.0, 0, 0, 1.0));
Antialiasing parameter is not reflected in the circle.

Is there any way to fix this problem?

Maybe this topic will help you. http://www.cocos2d-x.org/forums/6/topics/31300?r=52991